Athletic Club transfers for 2026/27 track 17 listed transfer moves, split into 0 incoming and 17 outgoing rows where provider data is available. The list covers permanent transfers, loans, free moves, loan returns, and other transfer labels supplied by the football data feed.

Outgoing moves include A. Boiro, Gorosabel, Unai Vencedor, Aingeru Olabarrieta, E. Gift, and M. Gibelalde with clubs including West Ham, Espanyol, Burgos, and Eldense. Dates and transfer labels are shown row by row so the season view can be scanned without mixing incoming and outgoing business.

The provider labels in this season include Loan, Free agent, and Transfer. These labels are kept close to the source feed, so loans, free transfers, and loan-return statuses can be compared directly in the table.